8800 battery drains unpredicta​bly

Hi, my 8800 seems to be fine on a full charge for a few hours, then it will drop charge quickly over an hour or two, down to 50% or less.  Sometimes, overnight after a full charge in the afternoon, the 8800 is dead in the morning.  All it receives overnight is email from our BES server.  The cursor hourglass flicks on and off constantly too.
The only apps running are Browser, Home page, Call logs and Messages - all of which are empty.  OS is V4.5 (latest).
Anyone have any clues as to what could be causing this battery drain (I have tried 3 different batteries, all original BB branded)
Thanks in advance.
Solved!
Go to Solution.

I would suggest that you try the "drain battery 3x in a row, charge to 100% each time cycle" on one of the batterys. Read it in the link above...
PS: BeamBerry has worked great for me.
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    +Have you tried this simple tip?+
    +1) Hit home button twice to bring up active applications+
    +2) click and hold down mail until the red minus sign appears+
    +3) click on the red minus sign to quit the application+
    +4) hit the home screen and re-launch the mail application+
    +This has always fixed my mail issues. Note restarting the phone does+
    +not help, you need to do the above procedure.+
    I also cycled power, and it came back up with dataaccessd still crashing & cycling with repetitive spiking CPU loads. I also turned 'push' off earlier today (Fetch New Data / Push -> Off), apparently with no effect.
    I have the EAS profile installed per http://support.apple.com/kb/TS3398 with the DefaultEASTaskTimeout at 240. And it doesn't seem to matter whether the phone is on 3G or WiFi when this condition happens.
    As usual, the "fix" was to delete my Exchange e-mail account and re-install it. After that, I don't see 'dataaccessd' and 'REportCrash' coming and going in the pid list. This "fix" works, but going through this procedure 3-4 times per week is getting old, not to mention the unpleasant surprise of finding my battery has unexpectedly drained when I need to use my device.
    This is the first log entry (earliest) today at 13:39, when dataaccessd started crashing, before a slew of 4-6 entries per minute in the log directory on my Mac (after syncing) - see below.
    Question - any ideas how to fix this ? It was happening before the latest iOS upgrades so I don't think the standard "reload the os" answer is the fix....
    From: dataaccessd2010-12-01-133956ssherrats-iPhone.crash
    Incident Identifier: 23D8E941-7243-4C7D-BB52-F9641813E031
    CrashReporter Key: bf083330b2bcfde06f73366c5025c8bc7d298440
    Hardware Model: iPhone2,1
    Process: dataaccessd [23]
    Path: /System/Library/PrivateFrameworks/DataAccess.framework/Support/dataaccessd
    Identifier: dataaccessd
    Version: ??? (???)
    Code Type: ARM (Native)
    Parent Process: launchd [1]
    Date/Time: 2010-12-01 13:39:56.277 -0800
    OS Version: iPhone OS 4.2.1 (8C148a)
    Report Version: 104
    Exception Type: EXC_CRASH (SIGABRT)
    Exception Codes: 0x00000000, 0x00000000
    Crashed Thread: 0
    Thread 0 Crashed:
    0 libSystem.B.dylib 0x311de2d4 0x31165000 + 496340
    1 libSystem.B.dylib 0x311de2c4 0x31165000 + 496324
    2 libSystem.B.dylib 0x311de2b6 0x31165000 + 496310
    3 libSystem.B.dylib 0x311f2d72 0x31165000 + 580978
    4 libstdc++.6.dylib 0x301dea20 0x3019a000 + 281120
    5 libobjc.A.dylib 0x319a2594 0x3199c000 + 26004
    6 libstdc++.6.dylib 0x301dcdf2 0x3019a000 + 273906
    7 libstdc++.6.dylib 0x301dce46 0x3019a000 + 273990
    8 libstdc++.6.dylib 0x301dcf16 0x3019a000 + 274198
    9 libobjc.A.dylib 0x319a14c4 0x3199c000 + 21700
    10 CoreFoundation 0x314d07c2 0x31430000 + 657346
    11 Foundation 0x31d16242 0x31cc4000 + 336450
    12 DADaemonEAS 0x35d817e0 0x35d75000 + 51168
    13 DADaemonEAS 0x35d88046 0x35d75000 + 77894
    14 DADaemonEAS 0x35d83b22 0x35d75000 + 60194
    15 DADaemonEAS 0x35d8968e 0x35d75000 + 83598
    16 DADaemonEAS 0x35d80f7e 0x35d75000 + 49022
    17 DADaemonEAS 0x35d7694e 0x35d75000 + 6478
    18 DADaemonEAS 0x35d794ea 0x35d75000 + 17642
    19 DADaemonEAS 0x35d85ab8 0x35d75000 + 68280
    20 DAEAS 0x3430c2d6 0x342d1000 + 242390
    21 DAEAS 0x3431bec6 0x342d1000 + 306886
    22 DAEAS 0x3431cab8 0x342d1000 + 309944
    23 Foundation 0x31cf6806 0x31cc4000 + 206854
    24 Foundation 0x31cf6788 0x31cc4000 + 206728
    25 CFNetwork 0x3465047e 0x34641000 + 62590
    26 CFNetwork 0x346451f2 0x34641000 + 16882
    27 CFNetwork 0x3464537a 0x34641000 + 17274
    28 CFNetwork 0x346450e4 0x34641000 + 16612
    29 CFNetwork 0x34645096 0x34641000 + 16534
    30 CFNetwork 0x34645014 0x34641000 + 16404
    31 CFNetwork 0x34644f92 0x34641000 + 16274
    32 CoreFoundation 0x314867d6 0x31430000 + 354262
    33 CoreFoundation 0x314585b0 0x31430000 + 165296
    34 CoreFoundation 0x31457e54 0x31430000 + 163412
    35 CoreFoundation 0x31457c80 0x31430000 + 162944
    36 CoreFoundation 0x31457b88 0x31430000 + 162696
    37 dataaccessd 0x00001ca6 0x1000 + 3238
    38 dataaccessd 0x00001b38 0x1000 + 2872
    Thread 1:
    0 libSystem.B.dylib 0x31192974 0x31165000 + 186740
    1 libSystem.B.dylib 0x3123c704 0x31165000 + 882436
    2 libSystem.B.dylib 0x3123c174 0x31165000 + 881012
    3 libSystem.B.dylib 0x3123bb98 0x31165000 + 879512
    4 libSystem.B.dylib 0x311e024a 0x31165000 + 504394
    5 libSystem.B.dylib 0x311d8970 0x31165000 + 473456
    Thread 2:
    0 libSystem.B.dylib 0x31166268 0x31165000 + 4712
    1 libSystem.B.dylib 0x31168354 0x31165000 + 13140
    2 CoreFoundation 0x31458648 0x31430000 + 165448
    3 CoreFoundation 0x31457ed2 0x31430000 + 163538
    4 CoreFoundation 0x31457c80 0x31430000 + 162944
    5 CoreFoundation 0x31457b88 0x31430000 + 162696
    6 Foundation 0x31cc88e4 0x31cc4000 + 18660
    7 Foundation 0x31cc87fc 0x31cc4000 + 18428
    8 AppSupport 0x309ee822 0x309e4000 + 43042
    9 Foundation 0x31cc8242 0x31cc4000 + 16962
    10 libSystem.B.dylib 0x311df886 0x31165000 + 501894
    11 libSystem.B.dylib 0x311d4a88 0x31165000 + 457352
    Thread 3:
    0 libSystem.B.dylib 0x31166268 0x31165000 + 4712
    1 libSystem.B.dylib 0x31168354 0x31165000 + 13140
    2 CoreFoundation 0x31458648 0x31430000 + 165448
    3 CoreFoundation 0x31457ed2 0x31430000 + 163538
    4 CoreFoundation 0x31457c80 0x31430000 + 162944
    5 CoreFoundation 0x31457b88 0x31430000 + 162696
    6 Foundation 0x31cf15f6 0x31cc4000 + 185846
    7 Foundation 0x31ccf192 0x31cc4000 + 45458
    8 Foundation 0x31cc8242 0x31cc4000 + 16962
    9 libSystem.B.dylib 0x311df886 0x31165000 + 501894
    10 libSystem.B.dylib 0x311d4a88 0x31165000 + 457352
    Thread 4:
    0 libSystem.B.dylib 0x3118a68c 0x31165000 + 153228
    1 CoreFoundation 0x3148f662 0x31430000 + 390754
    2 libSystem.B.dylib 0x311df886 0x31165000 + 501894
    3 libSystem.B.dylib 0x311d4a88 0x31165000 + 457352
    Thread 5:
    0 libSystem.B.dylib 0x311e09e0 0x31165000 + 506336
    1 libSystem.B.dylib 0x311e0364 0x31165000 + 504676
    2 libSystem.B.dylib 0x311d8970 0x31165000 + 473456
    Thread 6:
    0 libSystem.B.dylib 0x311e09e0 0x31165000 + 506336
    1 libSystem.B.dylib 0x311e0364 0x31165000 + 504676
    2 libSystem.B.dylib 0x311d8970 0x31165000 + 473456
    Thread 0 crashed with ARM Thread State:
    r0: 0x00000000 r1: 0x00000000 r2: 0x00000001 r3: 0x3e1a82e8
    r4: 0x00000006 r5: 0x301dc989 r6: 0x001afa8c r7: 0x2fdfe1b4
    r8: 0x001af560 r9: 0x00000065 r10: 0x33bb3910 r11: 0x00139890
    ip: 0x00000025 sp: 0x2fdfe1b4 lr: 0x311de2cb pc: 0x311de2d4
    cpsr: 0x00000010
    Binary Images:
    0x1000 - 0x1fff dataaccessd armv7 <cb2dfcefb43430f4550f0187890de64a> /System/Library/PrivateFrameworks/DataAccess.framework/Support/dataaccessd
    0x23000 - 0x24fff dns.so armv7 <fcefecb2d5e095ba88127eec3af57ec0> /usr/lib/info/dns.so
    0x2fe00000 - 0x2fe27fff dyld armv7 <06e6959cebb4a72e66c833e26ae64d26> /usr/lib/dyld
    0x30122000 - 0x30177fff libvDSP.dylib armv7 <9365fc6cae1bff737257e74faf3b1f26> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/lib vDSP.dylib
    0x3019a000 - 0x301e4fff libstdc++.6.dylib armv7 <53a6e7239c3908fa8c2915b65ff3b056> /usr/lib/libstdc++.6.dylib
    0x3024e000 - 0x302fdfff WebKit armv7 <644a1c6120578f896bed7121307aa2af> /System/Library/PrivateFrameworks/WebKit.framework/WebKit
    0x30319000 - 0x30320fff libbz2.1.0.dylib armv7 <2989ea7a5cad2cfe91bd632b041d0ff4> /usr/lib/libbz2.1.0.dylib
    0x30569000 - 0x3056afff CoreSurface armv7 <f7caaf43609cfe0e475dfe83790edb4d> /System/Library/PrivateFrameworks/CoreSurface.framework/CoreSurface
    0x30746000 - 0x3074ffff CoreVideo armv7 <2092d5deb6b234e04678b7c1878ccd81> /System/Library/Frameworks/CoreVideo.framework/CoreVideo
    0x30750000 - 0x3075bfff libz.1.dylib armv7 <fabaddbcbc8c02bab0261df9d78e0e25> /usr/lib/libz.1.dylib
    0x3075f000 - 0x30761fff MobileInstallation armv7 <8e6b0d9f642be06729ffdaaee97053b0> /System/Library/PrivateFrameworks/MobileInstallation.framework/MobileInstallati on
    0x30792000 - 0x3079cfff AccountSettings armv7 <19c79f81d5d55fe2e6b618fcdc28258e> /System/Library/PrivateFrameworks/AccountSettings.framework/AccountSettings
    0x3079d000 - 0x307a3fff liblockdown.dylib armv7 <5bbd9b3f5cfece328f80c403a8805ce9> /usr/lib/liblockdown.dylib
    0x30853000 - 0x30854fff DataMigration armv7 <babbc72d4d48325de147d5103d7bc00d> /System/Library/PrivateFrameworks/DataMigration.framework/DataMigration
    0x309e4000 - 0x30a16fff AppSupport armv7 <47c8055ac99f187174ca373b702ffa68> /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport
    0x30a1d000 - 0x30a54fff Security armv7 <cd28e102950634ae7167ddee9c686d36> /System/Library/Frameworks/Security.framework/Security
    0x30a5d000 - 0x30b0bfff QuartzCore armv7 <83a8e5f0033369e437069c1e758fed83> /System/Library/Frameworks/QuartzCore.framework/QuartzCore
    0x30c3d000 - 0x30c5afff AppleAccount armv7 <e3833276f8877499c8dd76b3b3d88501> /System/Library/PrivateFrameworks/AppleAccount.framework/AppleAccount
    0x30c7e000 - 0x30caafff DataAccess armv7 <6b9b5235b449335ce5c66d53f32004cd> /System/Library/PrivateFrameworks/DataAccess.framework/DataAccess
    0x30d3c000 - 0x30d3ffff ActorKit armv7 <f5d038591e564646e9237a59c6c14293> /System/Library/PrivateFrameworks/ActorKit.framework/ActorKit
    0x30d54000 - 0x30d61fff libbsm.0.dylib armv7 <0f4e595e6eb2170aceb729f32b5de8c2> /usr/lib/libbsm.0.dylib
    0x30e16000 - 0x30e16fff liblangid.dylib armv7 <83e91e0930ee03bc33604f1a85ecf402> /usr/lib/liblangid.dylib
    0x30faf000 - 0x30feefff libGLImage.dylib armv7 <a7c117c92607a512823d307b8fdd0151> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib
    0x3101d000 - 0x3101ffff CrashReporterSupport armv7 <30a5f1edcdb9ffe868a620199a4cbe12> /System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterS upport
    0x31020000 - 0x3102cfff SpringBoardServices armv7 <137b75e19b2450c234dec88d538798ff> /System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServ ices
    0x31077000 - 0x3115ffff libGLProgrammability.dylib armv7 <1f478a71783cd7eb4ae9ef6f2dcea803> /System/Library/Frameworks/OpenGLES.framework/libGLProgrammability.dylib
    0x31160000 - 0x31163fff IOSurface armv7 <deff02882166bf16d0765d68f0542cc8> /System/Library/PrivateFrameworks/IOSurface.framework/IOSurface
    0x31165000 - 0x31276fff libSystem.B.dylib armv7 <138a43ab528bb428651e6aa7a2a7293c> /usr/lib/libSystem.B.dylib
    0x31324000 - 0x31336fff PersistentConnection armv7 <cd2a699aa5036bdad0517603ba4db839> /System/Library/PrivateFrameworks/PersistentConnection.framework/PersistentConn ection
    0x31337000 - 0x31371fff IOKit armv7 <eb932cc42d60e55d9a4d0691bcc3d9ad> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
    0x313fa000 - 0x3140dfff libmis.dylib armv7 <855aefc263c6c20e6cf8723ea36125a2> /usr/lib/libmis.dylib
    0x31430000 - 0x31516fff CoreFoundation armv7 <01441e01f5141a50ee723362e59ca400> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
    0x31517000 - 0x31519fff IOMobileFramebuffer armv7 <1040629f37795146c9dcac8ab1a868fc> /System/Library/PrivateFrameworks/IOMobileFramebuffer.framework/IOMobileFramebu ffer
    0x3151b000 - 0x3151efff CertUI armv7 <5f37446c6b65a8c38ab6233c2e33da66> /System/Library/PrivateFrameworks/CertUI.framework/CertUI
    0x3151f000 - 0x3153afff DADaemonSupport armv7 <019523c36bd94fd3dd5a98bb110dc33a> /System/Library/PrivateFrameworks/DataAccess.framework/Frameworks/DADaemonSuppo rt.framework/DADaemonSupport
    0x31549000 - 0x3154cfff CaptiveNetwork armv7 <a2af7147f5538d7669b14fa7b19b5a7c> /System/Library/PrivateFrameworks/CaptiveNetwork.framework/CaptiveNetwork
    0x3155c000 - 0x3167cfff CoreGraphics armv7 <2d7b40a7baca915ce78b1dd9a0d6433b> /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
    0x3167d000 - 0x3168dfff DataAccessExpress armv7 <6767a1e2afbc86a1ec63dd784f5d3677> /System/Library/PrivateFrameworks/DataAccessExpress.framework/DataAccessExpress
    0x316cf000 - 0x31702fff iCalendar armv7 <6eb50e720d642f5ac510a36989b276b2> /System/Library/PrivateFrameworks/iCalendar.framework/iCalendar
    0x31703000 - 0x31705fff libgcc_s.1.dylib armv7 <e66758bcda6da5d7f9b54fa5c4de6da2> /usr/lib/libgcc_s.1.dylib
    0x317f9000 - 0x3183cfff ManagedConfiguration armv7 <27ac7f05482a8aa9977150f34f9be6eb> /System/Library/PrivateFrameworks/ManagedConfiguration.framework/ManagedConfigu ration
    0x3186b000 - 0x3187afff Notes armv7 <7d7a3d10a349471cd2757a479d131b31> /System/Library/PrivateFrameworks/Notes.framework/Notes
    0x3187b000 - 0x31991fff libicucore.A.dylib armv7 <e7fbb2ac586567e574dc33d7bb5c4dc9> /usr/lib/libicucore.A.dylib
    0x31992000 - 0x3199bfff WebBookmarks armv7 <9f1760206eaef20c605c5d98e45c823e> /System/Library/PrivateFrameworks/WebBookmarks.framework/WebBookmarks
    0x3199c000 - 0x31a5dfff libobjc.A.dylib armv7 <aaf5671a35f9ac20d5846703dafaf4c6> /usr/lib/libobjc.A.dylib
    0x31a7d000 - 0x31a8afff OpenGLES armv7 <a12565ffb5bb42e3019f1957cd4951d0> /System/Library/Frameworks/OpenGLES.framework/OpenGLES
    0x31ae0000 - 0x31ae3fff libGFXShared.dylib armv7 <3a385ed495379116abbe50bc8cd5a612> /System/Library/Frameworks/OpenGLES.framework/libGFXShared.dylib
    0x31b29000 - 0x31b52fff MobileCoreServices armv7 <54484a513761868149405df7fc29b5c0> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices
    0x31b58000 - 0x31b5ffff AggregateDictionary armv7 <71372c95d4af7af787d0682a939e40ac> /System/Library/PrivateFrameworks/AggregateDictionary.framework/AggregateDictio nary
    0x31bcc000 - 0x31be1fff libresolv.9.dylib armv7 <ea156820997ae9a2baf664d0f79f18d7> /usr/lib/libresolv.9.dylib
    0x31cc4000 - 0x31de3fff Foundation armv7 <81d36041f04318cb51db5aafed9ce504> /System/Library/Frameworks/Foundation.framework/Foundation
    0x31e18000 - 0x31e63fff libBLAS.dylib armv7 <251c5ac7380802a16e30d827c027c637> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/lib BLAS.dylib
    0x33856000 - 0x33884fff MIME armv7 <1989502ce4da514314647c6a0098d8e7> /System/Library/PrivateFrameworks/MIME.framework/MIME
    0x33886000 - 0x3389cfff EAP8021X armv7 <36659ec2b9def7b5798a05327e369247> /System/Library/PrivateFrameworks/EAP8021X.framework/EAP8021X
    0x33c5e000 - 0x33ce7fff Message armv7 <69cb7cb1d1d7865fc04dc341544174b6> /System/Library/PrivateFrameworks/Message.framework/Message
    0x33ce8000 - 0x342d0fff WebCore armv7 <d6bd9cf88ee82ab6b0e33e0ae1190772> /System/Library/PrivateFrameworks/WebCore.framework/WebCore
    0x342d1000 - 0x34341fff DAEAS armv7 <4d331bcf15c2b452aa3c02d21b99067a> /System/Library/PrivateFrameworks/DataAccess.framework/Frameworks/DAEAS.framewo rk/DAEAS
    0x34342000 - 0x3436bfff ContentIndex armv7 <247576cb4f1ff8e92650ae3cb4973760> /System/Library/PrivateFrameworks/ContentIndex.framework/ContentIndex
    0x3438c000 - 0x343e5fff EventKit armv7 <037c4bb5e2529e6004d0e1f3d95a84cc> /System/Library/Frameworks/EventKit.framework/EventKit
    0x343e6000 - 0x34405fff Bom armv7 <0f5fd6057bad5e1677869500d636821f> /System/Library/PrivateFrameworks/Bom.framework/Bom
    0x344ea000 - 0x34623fff AudioToolbox armv7 <657b327f2ceee9f22f9474f2f9bddbe6> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox
    0x34628000 - 0x34628fff Accelerate armv7 <29dd5f17440bbb6e8e42e11b6fceda9a> /System/Library/Frameworks/Accelerate.framework/Accelerate
    0x34641000 - 0x34700fff CFNetwork armv7 <02fe0e30e54fffdcbbbd02e8cb812c3a> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
    0x3471b000 - 0x3473cfff MobileSync armv7 <cff20dfe818febca9f3232426d59a42d> /System/Library/PrivateFrameworks/MobileSync.framework/MobileSync
    0x34941000 - 0x34944fff ApplePushService armv7 <9d1eb7b11f0f146c941efbab2c055606> /System/Library/PrivateFrameworks/ApplePushService.framework/ApplePushService
    0x34952000 - 0x3495afff MobileWiFi armv7 <b29d4c5e300ef81060e38f72bb583c02> /System/Library/PrivateFrameworks/MobileWiFi.framework/MobileWiFi
    0x3495b000 - 0x34bf5fff libLAPACK.dylib armv7 <2e77d87e96af938aacf0a6008e6fb89d> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/lib LAPACK.dylib
    0x34bf6000 - 0x34c36fff CoreAudio armv7 <f32e03ee4c68f0db23f05afc9a3cc94c> /System/Library/Frameworks/CoreAudio.framework/CoreAudio
    0x35227000 - 0x3532efff CoreData armv7 <29b1ab7d339e42a6ff6923e54cf43e7b> /System/Library/Frameworks/CoreData.framework/CoreData
    0x35336000 - 0x353dffff libxml2.2.dylib armv7 <b3d82f80a777cb1434052ea2d232e3df> /usr/lib/libxml2.2.dylib
    0x353e1000 - 0x3548efff JavaScriptCore armv7 <3f2df600942dc72aad312b3cc98ec479> /System/Library/PrivateFrameworks/JavaScriptCore.framework/JavaScriptCore
    0x354b4000 - 0x354bcfff libkxld.dylib armv7 <854e82fe66feef01e54c7c8a209851ac> /usr/lib/system/libkxld.dylib
    0x354fa000 - 0x3553cfff CoreTelephony armv7 <96d3af505b9f2887e62c7e99c157733e> /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony
    0x3553d000 - 0x3558afff libsqlite3.dylib armv7 <55038e5c1d4d0dbdd94295e8cad7a9a4> /usr/lib/libsqlite3.dylib
    0x35a37000 - 0x35a3cfff MobileKeyBag armv7 <cec3f3271fc267c32c169ed03e312d63> /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
    0x35a95000 - 0x35a95fff vecLib armv7 <e53d234e808c77d286161095f92c58cf> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/vec Lib
    0x35bcc000 - 0x35bfbfff SystemConfiguration armv7 <3f982c11b5526fc39a92d585c60d8a90> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
    0x35d62000 - 0x35d6efff GraphicsServices armv7 <0099670dccd99466653956bf918d667a> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
    0x35d75000 - 0x35d98fff DADaemonEAS armv7 <a6c7e0fc1fbee8494bf605c5ec0bee6f> /System/Library/PrivateFrameworks/DataAccess.framework/Frameworks/DAEAS.framewo rk/DADaemonEAS.bundle/DADaemonEAS
    0x35db1000 - 0x35e44fff ImageIO armv7 <5b5a294d4250eff866fdbf891b1e8b34> /System/Library/Frameworks/ImageIO.framework/ImageIO
    0x35e52000 - 0x35e85fff AddressBook armv7 <7c87e0175c8649d6832419da8a1cfac1> /System/Library/Frameworks/AddressBook.framework/AddressBook
    0x35f4a000 - 0x35f4ffff libMobileGestalt.dylib armv7 <5f73c7138ee1cb7103a98aec99f9ed88> /usr/lib/libMobileGestalt.dylib
    0x35f86000 - 0x35fbcfff CoreText armv7 <b9b5c21b2d2a28abc47842c78c026ddf> /System/Library/Frameworks/CoreText.framework/CoreText
    0x3607f000 - 0x3608efff MobileDeviceLink armv7 <8f2fc7e811bc57f7a09d7df81c329e1a> /System/Library/PrivateFrameworks/MobileDeviceLink.framework/MobileDeviceLink

    dataaccessed crashing repeatedly here as well, only when syncing with Exchange Calendar, regardless of push/fetch setting. Disabling calendar on this account stops the crashes. Re-creating account doesn't help. Problems started 2 days ago. More info on the crash from iPhone console below, collected using Configuration Utility, in case it can help someone. I suppose Apple automatically receives crash dumps for their own applications through iTunes ?
    Fri Mar 4 07:02:38 iPhone dataaccessd[24] <Warning>: EAS|Have an exception with no start date or exception start date. Results are undefined, event is <ASEventException: [(null)] [(null)] [(null)] [(null)]>: exceptionStartTime (null) isDeleted NO
    Fri Mar 4 07:02:39 iPhone dataaccessd[24] <Error>: * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary setObject:forKey:]: attempt to insert nil key'
    * Call stack at first throw:
    0 CoreFoundation 0x33ac0987 __exceptionPreprocess + 114
    1 libobjc.A.dylib 0x3347b49d objcexceptionthrow + 24
    2 CoreFoundation 0x33ac07c9 +[NSException raise:format:arguments:] + 68
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